Power supply and driving method thereof
a technology of power supply and driving method, which is applied in the direction of power conversion systems, dc-dc conversion, instruments, etc., can solve the problem of limiting the scope of output voltage that can chang
Active Publication Date: 2017-06-15
SAMSUNG DISPLAY CO LTD
View PDF4 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The patent text describes a power supply that can control the output voltage by adjusting a resistance ratio in a voltage divider circuit. However, the scope of the output voltage is limited. To address this, the patent suggests adding a separate voltage divider circuit outside of the power supply to have more flexibility in controlling the output voltage. The power supply also includes a switch controller that compares the feedback voltage with a reference voltage and controls the switch accordingly to achieve the desired output voltage. The power supply may also include a current supply to supply a current to the feedback terminal. The technical effects of the patent text are to provide a more flexible and precise control over the output voltage of a power supply.
Problems solved by technology
By controlling a resistance ratio of a voltage divider circuit equipped in a power supply, a scope of the output voltage may be controlled, but there is a limit to the scope of an output voltage that can change as a result.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032]In the following detailed description, only certain exemplary embodiments of the invention have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. In addition, it will be understood that when an element or layer is referred to as being “on”, “connected to” or “coupled to” another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,”“directly connected to” or “directly coupled to” another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term “and / or” ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A power supply includes a voltage converter circuit which converts an input voltage into an output voltage and outputs the output voltage, a voltage controller which controls the voltage converter circuit in response to a first feedback voltage or a second feedback voltage, a feedback terminal which supplies the first feedback voltage, an internal voltage divider circuit which supplies the second feedback voltage, and a switch unit which transfers the first feedback voltage or the second feedback voltage to the voltage controller.
Description
[0001]This application claims priority to Korean Patent Application No. 10-2015-0175013, filed on Dec. 9, 2015, and all the benefits accruing therefrom under 35 U.S.C. §119, the content of which in its entirety is herein incorporated by reference.BACKGROUND[0002]1. Field[0003]Exemplary embodiments relate to a power supply and a driving method thereof.[0004]2. Description of the Related Art[0005]In recent years, various display devices which reduce weight and volume that are disadvantages of cathode ray tubes are developed. Such display devices include a liquid crystal display device, a field emission display device, a plasma display device, an organic light emitting display device, etc., for example.[0006]Such display devices generally include a power supply that converts external voltage and generates voltages for driving the display device.[0007]The power supply includes a voltage divider circuit including multiple resistors. The power supply receives an output voltage as a feedba...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H02M3/156G09G3/20H02M1/08
CPCH02M3/156H02M1/08G09G3/2092G09G2330/028G09G2310/0267G09G2310/0275G09G2310/08G09G3/20H02M1/0006H02M1/0025
Inventor LEE, SEOK HWANLEE, JONG JAENAM, YANG UKHEO, SE YOUNGHONG, JUN KI
Owner SAMSUNG DISPLAY CO LTD